Millimeter-Wave Multi-Hop Wireless Backhauling for 5G Cellular Networks

The millimeter-wave (mmWave) bands, roughly referred to 30-300 GHz, have been widely recognized as a promising candidate for dense deployment of small- cells backhaul network. The dense small-cell deployment produces a huge amount of backhaul traffic, and directional communication poses a significant challenge. In this paper, we propose a dynamic frame reconfiguration scheme which provides greater flexibility for dynamic traffic adaptation in multi-hop mmWave relay backhaul. This allows better exploitation of the traffic dynamics in smallcell. In addition, we present a traffic load and link-quality aware multi-hop relay backhaul scheduling algorithm to maximize the overall system performance. The extensive simulation results demonstrate the superiority of our proposed algorithm when compared with other schemes.